Purple Swift manufacturers birdhouses in lots of 45. Each birdhouse takes 45 minutes to paint. After every 45 birdhouses are painted, the company switches paint color which requires a 45 minutes changeover. The company works 8 hours per shift, one shift per day, 220 days per year. Currently, the company has one paint booth. What is Purple Swift's paint capacity cushion if it builds 1,980 birdhouses per year? Multiple Choice 7.8% O O O 3.4% 13.8% 6.5%